<script setup>
import { getGoodsTypeDataByIdData, getGoodsTypePicDataByIdData } from "@/apis/goodsType";
import { useRoute, onBeforeRouteUpdate } from "vue-router";
import { onMounted, ref } from "vue";
import GoodsItem from '@/views/Home/components/GoodsItem.vue'
const route = useRoute()

const goodsTypeData = ref(Object)
const getGoodsTypeDataById = async (id = route.params.id) => {
  const res = await getGoodsTypeDataByIdData(id);
  goodsTypeData.value = res.data;
}

const goodsTypePicData = ref([])
const getGoodsTypePicDataById = async (id = route.params.id) => {
  const res = await getGoodsTypePicDataByIdData(id);
  goodsTypePicData.value = res.data;
}
//最先写法
// const goodsTypeData = ref(Object)
// const getGoodsTypeDataById = async () => {
//   const res = await getGoodsTypeDataByIdData(route.params.id);
//   goodsTypeData.value = res.data;
// }

// const goodsTypePicData = ref([])
// const getGoodsTypePicDataById = async () => {
//   const res = await getGoodsTypePicDataByIdData(route.params.id);
//   goodsTypePicData.value = res.data;
// }

// 目标:路由参数变化的时候 可以把分类数据接口重新发送
onBeforeRouteUpdate((to) => {
    // 存在问题：使用最新的路由参数请求最新的分类数据
    getGoodsTypeDataById(to.params.id)
    getGoodsTypePicDataById(to.params.id)
})

onMounted(() => {
  getGoodsTypeDataById();
})
onMounted(() => {
  getGoodsTypePicDataById();
})
</script>

<template>
  <div class="top-category">
    <div class="container m-top-20">
      <!-- 面包屑 -->
      <div class="bread-container">
        <el-breadcrumb separator=">">
          <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
          <el-breadcrumb-item>{{ goodsTypeData.name }}</el-breadcrumb-item>
        </el-breadcrumb>
      </div>

      <div class="home-banner">
        <el-carousel height="500px">
          <el-carousel-item v-for="item in goodsTypePicData" :key="item.id">
            <img :src="item.pic" alt="" />
          </el-carousel-item>
        </el-carousel>
      </div>

      
      <div class="sub-list">
  <h3>全部分类</h3>
  <ul>
    <li v-for="i in goodsTypeData.children" :key="i.id">
      <RouterLink to="/">
        <img :src="i.pic" />
        <p>{{ i.name }}</p>
      </RouterLink>
    </li>
  </ul>
</div>
<div class="ref-goods" v-for="item in goodsTypeData.children" :key="item.id">
  <div class="head">
    <h3>- {{ item.name }}-</h3>
  </div>
  <div class="body">
    <GoodsItem v-for="good in item.goodsInfo" :good="good" :key="good.id" />
  </div>
</div>

      
    </div>
  </div>
</template>


<style scoped lang="scss">
.home-banner {
  width: 1240px;
  height: 500px;
  // position: absolute;
  // left: 0;
  // top: 0;
  margin: 0 auto;
  z-index: 98;

  img {
    width: 100%;
    height: 500px;
  }
}

.top-category {
  h3 {
    font-size: 28px;
    color: #666;
    font-weight: normal;
    text-align: center;
    line-height: 100px;
  }

  .sub-list {
    margin-top: 20px;
    background-color: #fff;

    ul {
      display: flex;
      padding: 0 32px;
      flex-wrap: wrap;

      li {
        width: 168px;
        height: 160px;

        a {
          text-align: center;
          display: block;
          font-size: 16px;

          img {
            width: 100px;
            height: 100px;
          }

          p {
            line-height: 40px;
          }

          &:hover {
            color: $xtxColor;
          }
        }
      }
    }
  }

  .ref-goods {
    background-color: #fff;
    margin-top: 20px;
    position: relative;

    .head {
      .xtx-more {
        position: absolute;
        top: 20px;
        right: 20px;
      }

      .tag {
        text-align: center;
        color: #999;
        font-size: 20px;
        position: relative;
        top: -20px;
      }
    }

    .body {
      display: flex;
      justify-content: space-around;
      padding: 0 40px 30px;
    }
  }

  .bread-container {
    padding: 25px 0;
  }
}
</style>